Building Embedded Linux Systems

Although email is undoubtedly essential to many companies, it can also cause management problems and can be a dangerous means of spreading viruses and spam. The hands-on method of Postfix. The "Detailed Guide" will be equally useful for professionals and beginners alike, giving them the opportunity to manage this modern open mail server. Whether you use Postfix for a small company, a relay server or a corporate mail server, you will learn how to make the most of this powerful communication tool and its valuable security features. The authors of this book are highly regarded experts in Postfix. They combined their knowledge and experience, and collected many technical information, documents and answers to common questions in one book. Introduce the most common usage of Postfix and rarely used functions. Practical examples show you how to solve everyday problems, such as protecting users from spam and viruses, managing multiple domains, and providing roaming access. You will learn how to:
Filtering viruses and spam. Integration with OpenLDAP, MySQL or PostgreSQL depends on the network, the type of mail client and many other factors, restricting blacklist-based communication activities
Authenticated users apply TLS encryption to automate daily operations. This book introduces a large and complex topic in an accessible and detailed manner. Postfix administrators will find the presentation structure very convenient, and the simple presentation style makes this book available to all levels of UNIX/Linux administrators.

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